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Author: admin

Daemon Thread in Java

admin February 24, 2021 April 12, 2021multi-threading Java, Java multithreading 0

Daemon thread in Java is a thread that runs in background to perform some tasks for the program as long as the program is running. Even if daemon threads are running that doesn’t prevent JVM from shutting down. Features of daemon thread in Java 1. The Java Virtual Machine exits…

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Installing Java in Ubuntu

admin December 28, 2019 December 17, 2020Installation-java Java installation, java-basics, ubuntu 0

This post shows how to install Orcale JDK using apt-get or by downloading from the Oracle site on Ubuntu. It also shows how to install OpenJDK. Installing Oracle JDK using apt-get For installing Java in Ubuntu first you need to add Oracle’s PPA (Personal Package Archive) so that Ubuntu knows…

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Hadoop MapReduce Word Count Program

admin February 11, 2019 November 10, 2020MapReduce hadoop, mapreduce 0

Once you have installed Hadoop on your system and initial verification is done you would be looking to write your first MapReduce program. Before digging deeper into the intricacies of MapReduce programming first step is the word count MapReduce program in Hadoop which is also known as the “Hello World”…

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UEFI Compatibilty for Ubuntu Installation

admin January 3, 2019 June 30, 2019UEFI Ubuntu installation, UEFI 1

UEFI (Unified Extensible Firmware Interface) is a firmware, just like BIOS, that starts when you switch on your PC before booting the Operating System. UEFI is getting traction now and recent systems come with UEFI. It is developed as a replacement to traditional BIOS and provides support for – Using…

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How to Create Bootable USB Drive For Installing Ubuntu

admin December 2, 2018 July 1, 2019Installation Ubuntu installation, USB, Windows 2

In this tutorial you’ll learn how to create bootable USB drive for installing Ubuntu using Rufus tool. In this post the bootable USB drive is created on Windows OS. Why do you need bootable USB Drive You will need a bootable USB stick to – Install or upgrade Ubuntu. Boot…

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Installing Hadoop in Pseudo-Distributed Mode

admin November 30, 2018 August 25, 2020Installation hadoop, hadoop installation, ubuntu 0

In this post we’ll see how to install Hadoop in Pseudo-distributed mode (single node cluster). With the steps given here for Hadoop installation you will have Hadoop common, HDFS, MapReduce and YARN installed. Hadoop release used for installation is Hadoop 2.9.0 and it is installed on Ubuntu 16.04. Modes in…

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How to Dual-Boot Ubuntu And Windows

admin March 20, 2018 July 1, 2019Installation Ubuntu installation, UEFI, Windows 1

This post shows how to install Ubuntu along with Windows for a dual boot Ubuntu-Windows system. Here assumption is that you already have a Windows system and you want to install Ubuntu too on the same machine for dual boot. For this post Ubuntu 16.04.3 is installed on Windows 10.…

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